rule of thumb is 1" per pound. So, a light 17" wheel would be any one weighing 17 lbs or less. make sense?
Also, BBS is not a rip off, they are extremely strong, extremely high quality wheels. Kosei is also good, but they don't offer the looks of BBS, IMO. I think the wheels that are a ripoff are anything resembling a "spinner" ;-)
One thing to keep in mind is TIRE WEIGHT. It has more of an effect on your acceleration than the wheel weight because it's the farthest from the center. Most hi-performance tires are quite heavy because of all the reinforcing. You should be careful in selecting tires to make sure not to gain too much weight. For instance, Falken Azenis are VERY heavy tires. They handle well, but they are some of the heaviest on the market. Basically, what I'm saying is, it doesn't matter if you save 2 pounds on the wheel if you gain 5 pounds back in the tire. In fact, that's actually worse!
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